Kibana Dashboard Usage

Elastic Stack Kibana
1

How I can set or reset the username and the password of kibana dashboard?

2

Is this an X-Pack user?

3

I don't know after I create the cluster kibana link appeared to me to open the dashboard but I don't know which username and which password
and when I insert elastic and its password this message appear to me.

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4

or what is the default username and password

5

Please see https://www.elastic.co/guide/en/kibana/current/using-kibana-with-security.html